Increasing contrast when working in black and white, this 138mm Tiffen 138mm Red 23A Filter for Photographyfrom Tiffen 138mm Red 23A Filter for Photographyis used to noticeably darken cool and blue tones in order to emphasized both shadows and clouds. Offering greater tonal separation than regular yellow and orange contrast filters, the light-red 23A is especially well-suited to producing dramatic outdoor and landscape imagery. There is an approximate 4x filter factor with this filter, requiring an increase of 2 stops for normal exposure.

The filter is constructed using Tiffen's ColorCore technology, which involves lamenting the filter material between two pieces of optical glass, grounding flat to a tolerance of 1/10,000th of an inch, and mounting within an aluminum alloy ring.

Increases Black and White Contrast    Effect Corresponds to Wratten 23A Filter    Darkens Blue Tones    Lightens Red and Orange Tones    Reduces Haze in Daylight    4x Filter Factor, +2 Stop    Optical Glass, ColorCore Technology    Aluminum Ring

Light-red filter provides the same effect as a Wratten 23A contrast filter, and helps to darken blue tones while lightening warm orange and red tones, when photographing in black and white.

Commonly used for landscape photography to emphasize and darken blue skies and give clouds more visual depth.

Filter factor of 4 requires approximately 2 stops of additional exposure to maintain normal results.

ColorCore technology, which permanently laminates the filter material between two pieces of optical glass, maintains image clarity, accuracy, and consistency.

Aluminum filter ring is both lightweight and durable.

Related Questions and Answers

Q: 1. Will this work with the Wooden Camera Zip Box Pro 4.5in Round Filter Stage?

A: Hi, yes, this filter is compatible with the Wooden Camera Zip Box Pro 4.5in Round Filter Stage.

Q: 2. Will this rota-polo fit into the Wooden Camera 2 stage clamp on universal matte box? (SKU 201900)

A: Yes, the Lindsey Optics 138mm Brilliant Rota-Pol Circular Polarizer for 4 x 5.65" Cine Matte Boxes is compatible with the Wooden Camera UMB-1 Universal Matte Box (Clamp On).

Q: 3. Will this fit the Tilta MB-T12 matte box?

A: Yes it will

Q: 4. Can you use it with the Auray broadcast arm?

A: No. The Auray RF-C20 Studio Isolation Filter weighs 8.2 pounds, which is much more weight than the Auray broadcast arms can support. The Auray BA-XE4 Broadcast Arm with Integrated XLR Cable (B&H # AUBAXE4) and the BAE-2X Two-Section Broadcast Arm with External Springs & Integrated XLR Cable (B&H # AUBAE2X) can each support up to 3.5 pounds, while the Auray BAI-2N Two-Section Broadcast Arm with Internal Springs (B&H # AUBAI2N) and the BAI-2X Two-Section Broadcast Arm with Internal Springs and Integrated XLR Cable (B&H # AUBAI2X) can each support up to 5 pounds.

Q: 5. Compatible with https://www.bhphotovideo.com/c/product/1583634-REG/bright_tangerine_b1251_1045_one_tray_for_the.html ?

A: The Revar Cine Circular Polarizer Pola+ for Matte Boxes (138mm, Mounted) will fit in the Bright Tangerine ONE Tray for Misfit Kick Mk I/Mk II or ARRI LMB Matte Box.

Q: 6. Can the stand be removed and the filter used with a mic boom instead?

A: Yes, the stand on the Auray RF-C12R Professional Desktop Isolation Filter can be replaced with another upright stand, as the filter uses a standard 5/8"-27 size thread for mounting. Mounting on a mic stand's boom arm may prove difficult due to the weight of the apparatus, but an upright stand without arm should work well.

Q: 7. Does this work with this microphone? https://www.bhphotovideo.com/c/product/844096-REG/Audio_Technica_AT2005USB_AT2005USB_Cardioid_Dynamic_USB_XLR.html/mode/edu. and are any other components necessary

A: Hi, yes this does work with the Audio Technica microphone. Please note, the shockmount in the picture is not included though. You may consider the Audio-Technica AT8410A Shock Mount (Spring Loaded) BH #AUAT8410A - https://www.bhphotovideo.com/c/product/68138-REG/Audio_Technica_AT8410A_AT8410A_Shock_Mount.html. Thank you for shopping at B&H!

Q: 8. Will this work in the Wooden Zip Box Pro 4x5.65 (Clamp On)?

A: The Wooden Zip Box Pro 4x5.65 does not have a filter slot to fit the Lindsey Optics 138mm Brilliant Rota-Pol Circular Polarizer.

Q: 9. does it come with the shock mount?

A: No. It comes with all of the components listed on Page 03 of the manual, in the following link. https://static.bhphotovideo.com/lit_files/452850.pdf

Q: 10. Will this work with the Mirage matte box?

A: The Lindsey Optics 138mm Brilliant Rota-Pol Circular Polarizer for 4 x 5.65" Cine Matte Boxes is compatible with the Mirage matte box.